Not a former champ in the opposite corner, nor a recent defeat — and definitely not his age — can deter China's heavyweight boxer Zhang Zhilei from punching his way back into title contention once more.▲Zhang Zhilei (left) and Deontay Wilder pose during a news conference in London on Monday. Wilder has hinted his fight against Zhang, on the undercard of Dmitry Bivol and Artur Beterbiev’s undisputed light heavyweight world title fight in Saudi Arabia on June 1, could be his last. ACTION IMAGES VIA REUTERSDespite suffering a tough loss by majority decision to Joseph Parker last month, Zhang, aka the "Big Bang", has vowed to fight back to winning ways on June 1, when he is matched up against former WBC heavyweight titleholder Deontay Wilder of the United States on the undercard of the light heavyweight title bout between Dmitry Bivol and Artur Beterbiev in Saudi Arabia.Zhang, who could've secured himself a title shot with a win over Parker on March 8, refused to let the setback de
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